# Sony Alpha A7 IV vs OM System OM-1: specs and price compared

A sourced, side-by-side comparison of the Sony Alpha A7 IV (Sony) and OM System OM-1 (OM System) among mirrorless cameras. OM System OM-1 is the cheaper of the two at $2199.

## Side by side

| Spec | Sony Alpha A7 IV | OM System OM-1 |
| --- | --- | --- |
| US price | $2499 | $2199 |
| Brand | Sony | OM System |
| Released | 2021-12 | 2022-03 |
| Sensor format | Full-frame | Micro Four Thirds |
| Megapixels | 33 | 20.4 |
| Max video | 4K@60p | 4K@60p |
| Ibis | Yes | Yes |
| Mount | Sony E | Micro Four Thirds |
| Continuous (fps) | 10 | 50 |
| Weight (g) | 658 | 599 |

## Key differences

- Sensor format: Sony Alpha A7 IV Full-frame vs OM System OM-1 Micro Four Thirds
- Megapixels: Sony Alpha A7 IV 33 vs OM System OM-1 20.4
- Mount: Sony Alpha A7 IV Sony E vs OM System OM-1 Micro Four Thirds
- Continuous (fps): Sony Alpha A7 IV 10 vs OM System OM-1 50
- Weight (g): Sony Alpha A7 IV 658 vs OM System OM-1 599

## What reviewers say

**Sony Alpha A7 IV** — Two whitelisted hands-on reviews (TechRadar, Engadget) survived verification and agree the A7 IV is the best all-round hybrid mirrorless of its era: class-leading autofocus, strong 33MP stills and oversampled 10-bit 4:2:2 4K video. Both flag pronounced rolling shutter with the electronic shutter, a cropped Super 35 4K/60p mode, a price increase over the A7 III, and merely-average 10fps burst. All quotes are verbatim in the source text and all measured values are supported. (2 sourced reviews.)

**OM System OM-1** — Both whitelisted testers rate the OM-1 a strong, rugged Micro Four Thirds flagship: RTINGS calls it a very well-built, weather-sealed body with excellent ergonomics, an incredibly quick electronic-shutter burst, and one of the best IBIS systems; DPReview lab-tested 50 fps AF, 1,053 cross-type AF points and gave it a Gold Award. Main flaw: buffer clears slowly. (2 sourced reviews.)

## Sources

- Sony Alpha A7 IV: https://www.imaging-resource.com/PRODS/sony-a7-iv/sony-a7-ivA.HTM (imaging-resource.com, verified 2026-06-15)
- OM System OM-1: https://explore.omsystem.com/us/en/om-1 (explore.omsystem.com, verified 2026-06-15)

Canonical: https://frontdeskreview.com/gear/mirrorless-cameras/sony-a7-iv-vs-om-system-om-1/
Cite: Per The Front Desk Review, Sony Alpha A7 IV ($2499) vs OM System OM-1 ($2199) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/mirrorless-cameras/sony-a7-iv-vs-om-system-om-1/
License: CC BY 4.0.